| Honorific-Prefix: | The Honourable |
| Edwin Tsitsi | |
| Honorific-Suffix: | MP |
| Office: | Speaker of the Parliament of Nauru |
| Term Start: | 22 December 1976 |
| Term End: | 30 December 1976 |
| Predecessor: | Kenas Aroi |
| Successor: | David Gadaroa |
| Constituency Mp2: | Aiwo |
| Parliament2: | Nauruan |
| Predecessor2: | Position established |
| Successor2: | René Harris |
| Term Start2: | 31 January 1968 |
| Term End2: | 30 December 1976 |
| Birth Date: | 17 January 1925 |
| Birth Place: | Nauru |
Samuel Edwin Tsitsi (17 January 192520 May 1997) was a Nauruan politician.
Tsitsi was born on 17 January 1925. His father was Samuel Tsitsi. He was member of the Eamwidara tribe.[1] In 1939, he entered the medical service as an apprentice in a pharmacy in Sydney, Australia. In 1954, again in Sydney, he trained to become a pharmacist.[2]
In December 1964, there was a by-election to fill a vacancy in the Nauruan Local Government Council caused by the death of Councillor Raymond Gadabu. In the four-way election, Tsitsi was elected.[3] In 1966, Tsitsi was elected to the Legislative Assembly and re-elected to the Local Government Council. He represented the Aiwo district in both.[4]
In 1968, Tsitsi was elected to the first parliament of Nauru. He was nominated for Council of State, but failed election.[5] Tsitsi was re-elected to parliament in 1971, 1973, and 1976.[6] [7] [8] After Parliament Speaker Kenas Aroi accepted a ministerial post from President Hammer DeRoburt, Tsitsi was elected speaker on 22 December 1976. After being unable to keep order, Tsitsi resigned his parliamentary seat on 30 December.[9] [10] In the by-election for his seat in February 1977, Tsitsi was defeated by René Harris.[11]
Tsitsi again attempted to regain his seat in the Aiwo Constituency in the 1980 election, but was defeated.[12] By 1981, Tsitsi was serving as secretary for the Local Government Council.[13] In July 1981, MP René Harris resigned to contest a by-election and test his support. Tsitsi ran in this election, but was defeated by Harris again.[14]
Tsitsi died on 20 May 1997.[1]